Mechanism for Nonconservation of Muon Number

We consider the possibility that muon-number conservation is not a fundamental symmetry of nature. In simple SU(2) xU(1) gauge theories with several scalar boson doublets, muon number will still automatically be conserved by the intermediate-vector-boson interactions, but not by effects of virtual s...

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Veröffentlicht in:	Phys. Rev. Lett.; (United States) 1977-03, Vol.38 (12), p.622-625
Hauptverfasser:	Bjorken, James D., Weinberg, Steven
Format:	Artikel
Sprache:	eng
Schlagworte:	645302 - High Energy Physics- Particle Invariance Principles & Symmetries- Applications to Electromagnetic & Weak Interactions- (-1987) BASIC INTERACTIONS BOSONS CONSERVATION LAWS COUPLING CONSTANTS DECAY ELEMENTARY PARTICLES FERMIONS INTERACTIONS INTERMEDIATE BOSONS INTERMEDIATE VECTOR BOSONS LEPTON NUMBER LEPTONIC DECAY LEPTONS LIE GROUPS MATHEMATICAL MODELS MUONS PARTICLE DECAY PARTICLE MODELS PHYSICS OF ELEMENTARY PARTICLES AND FIELDS POSTULATED PARTICLES SU GROUPS SU-2 GROUPS SYMMETRY GROUPS U GROUPS U-1 GROUPS UNIFIED GAUGE MODELS UNITARITY WEAK INTERACTIONS WEAK PARTICLE DECAY
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Beschreibung
Zusammenfassung:	We consider the possibility that muon-number conservation is not a fundamental symmetry of nature. In simple SU(2) xU(1) gauge theories with several scalar boson doublets, muon number will still automatically be conserved by the intermediate-vector-boson interactions, but not by effects of virtual scalar bosons. The branching ratio for ..mu..+e+..gamma.. is estimated to be of order (..cap alpha../..pi..)/sup 3/. Other ..mu..-epsilon transition processes are also discussed.
ISSN:	0031-9007
DOI:	10.1103/PhysRevLett.38.622